* Activity Guide on Planet Earth *
* 10th Nov : World Science Day *
* Total Solar Eclipse-Training Programme for Master Resource Persons *
* Total Solar Eclipse of 22 July 2009 *
* Planet Earth Lisbon Event 2009 *
* Biological Diversity
(The very stuff of Life)
* Biological Diversity
(The web of life)
* Protecting the Ozone Layer
* Some Facts
* Amazing Adaptations
Chandigarh Weather Forecast, India
QuestionNo : 1
Name the process in which a harmful chemical enters the food chain and gets concentrated at each level in the food chain.
concentration
biomagnification
expansion
pollution
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